To find traveler tips, maps, where to stay, and other tourist information, read our Helsinki day trip planner.

Chicago, USA to Helsinki is an approximately 12.5- hour flight. You can also do a combination of train and flight; or do a combination of flight and ferry. Due to the time zone difference, you'll lose 8 hours traveling from Chicago to Helsinki. Expect slightly colder temperatures when traveling from Chicago in September; daily highs in Helsinki reach 61°F and lows reach 45°F. Finish your sightseeing early on the 22nd (Sun) so you can travel to Koli National Park.

Explore your travel options from Helsinki to Koli National Park with the Route module. Traveling from Helsinki in September, expect nights in Koli National Park to be about the same, around 44°F, while days are little chillier, around 56°F. Finish your sightseeing early on the 25th (Wed) to allow enough time to travel to Vaasa.

To see other places to visit, reviews, maps, and more tourist information, use the Vaasa trip planner.

You can drive from Koli National Park to Vaasa in 6.5 hours. Another option is to do a combination of car and flight. In September, daytime highs in Vaasa are 59°F, while nighttime lows are 44°F. Finish up your sightseeing early on the 27th (Fri) so you can travel back home.